package org.alex.samples.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.alex.samples.model.UsersVO;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class LoginInterceptor implements HandlerInterceptor{

	@Override
	public void afterCompletion(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception {
		System.out.println("----------------LoginInterceptor.afterCompletion()--------------------");
		
	}

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1, Object arg2, ModelAndView arg3)
			throws Exception {
		System.out.println("------------------LoginInterceptor.postHandle()-----------------------");
	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object arg2) throws Exception {
		HttpSession session = request.getSession();
		UsersVO users = (UsersVO) session.getAttribute("examUser");
		//System.out.println(users);
		if(users != null){
			return true;
		}else{
			response.sendRedirect(request.getContextPath() + "/login");
		}
		
		System.out.println("----------------LoginInterceptor.preHandle()--------------------------");
		return false;
	}

}
